A 42-year-old man presents to the emergency department with…
A 42-year-old man presents to the emergency department with complaints of fever, headache, joint pains, and a dry cough for the past six days. Three days ago, he started developing dyspnea. He has a recent medical history of gastroesophageal reflux disease for which he takes famotidine. The patient lives in Ohio and has never traveled outside the country. Vitals show a temperature of 38.1°C (101°F), respirations of 22/min, a pulse of 105/min, and blood pressure of 100/60 mmHg. Physical examination reveals tender nodules on his shins, bilaterally. Pulmonary examination reveals bilateral crackles. Which of the following may be seen on a chest x-ray of this patient?